SERVICE MANUAL - Restaurant Equipment, Restaurant Supply | Burkett

REACH-IN & ROLL-IN Refrigerators, Freezers and Heated Holding Cabinets

SERVICE MANUAL

Part #123456 January 2008

Safety Notices As you work on a McCall reach-in or roll-in, be sure to pay close attention to the safety notices in this manual. Disregarding the notices may lead to serious injury and/or damage to the equipment.

Throughout this manual, you will see the following types of safety notices:

WARNING Text in a Warning box alerts you to a potential personal injury situation. Be sure to read the Warning statement before proceeding, and work carefully.

CAUTION Text in a Caution box alerts you to a situation in which you could damage the equipment. Be sure to read the Caution statement before proceeding, and work carefully.

Procedural Notices As you work on a McCall reach-in or roll-in, be sure to read the procedural notices in this manual. These notices supply helpful information which may assist you as you work.

Throughout this manual, you will see the following types of procedural notices:

Important Text in an Important box provides you with information that may help you perform a procedure more efficiently. Disregarding this information will not cause damage or injury, but it may slow you down as you work.

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing.

i

Table of ContentsTable of Contents

Section 1 General Information ................................................................................................................................. 1-1

Model Numbers ....................................................................................................................................... 1-1 How to Read a Serial Number ................................................................................................................. 1-4 Model/Serial Number Location ............................................................................................................... 1-5 Warranty .................................................................................................................................................. 1-5 Warranty Service ..................................................................................................................................... 1-5 Warranty Certificate ................................................................................................................................ 1-6

Section 2 Installation ................................................................................................................................................. 2-1

General..................................................................................................................................................... 2-1 Installing the Cabinet ............................................................................................................................... 2-1 Uncrating ................................................................................................................................................. 2-2 Leveling the Cabinet................................................................................................................................ 2-3 Shelf/Tray Slide Installation .................................................................................................................... 2-3 Electrical Requirements........................................................................................................................... 2-4 Electrical Specifications .......................................................................................................................... 2-4

Section 3 Operation ................................................................................................................................................... 3-1

Sequence of Operation............................................................................................................................. 3-1 Condensate Water Removal (Refrigerators and Freezers) ...................................................................... 3-3 Defrost Systems ....................................................................................................................................... 3-3 Temperature Controls .............................................................................................................................. 3-4 Loading Shelves (Reach-In Cabinets) ..................................................................................................... 3-5 Loading Carts (Roll-In Cabinets) ............................................................................................................ 3-5 Adjustments and Calibrations.................................................................................................................. 3-6

Section 4 Maintenance .............................................................................................................................................. 4-1

Cleaning Recommendations .................................................................................................................... 4-1 Component Replacement Procedures ...................................................................................................... 4-3

Section 5 Troubleshooting ........................................................................................................................................ 5-1

Troubleshooting Guide ............................................................................................................................ 5-1 Section 6 Component Check Procedures................................................................................................................. 6-1

Main Power Switch.................................................................................................................................. 6-1 Temperature Control (Thermostat).......................................................................................................... 6-1 Light Switch............................................................................................................................................. 6-2 Defrost Termination/Fan Delay Switch................................................................................................... 6-2 Defrost Timer........................................................................................................................................... 6-3 Defrost Heater Element ........................................................................................................................... 6-3 Drain Pan Heater Element ....................................................................................................................... 6-4 Anti-Condensate Door Heaters................................................................................................................ 6-4 Compressor Overload Protector .............................................................................................................. 6-5 Start Relay ............................................................................................................................................... 6-5

Table of Contents

Compressor Windings ............................................................................................................................. 6-6 Section 7 Refrigerant Procedures ............................................................................................................................ 7-1

Refrigerant Recovery/Evacuation & Recharging .................................................................................... 7-1 Charging Procedures................................................................................................................................ 7-2 System Contamination Clean-up ............................................................................................................. 7-3 Refrigerant Re-Use Policy....................................................................................................................... 7-5

Section 8 Charts ......................................................................................................................................................... 8-1

Charging Specifications – Refrigerators.................................................................................................. 8-1 Charging Specifications – Freezers ......................................................................................................... 8-3 Charging Specifications – Dual-Temps (Refrigerators/Freezers) ........................................................... 8-4

Section 9 Diagrams .................................................................................................................................................... 9-1

1-1

Section 1 General InformationSection 1

General Information Model NumbersThis manual covers the following models:

Reach-In Refrigerators and Freezers 1 Section

Reach-In Refrigerators 1-1020, 1-102001E 2-2020, 2-202001E 4-4020, 4-402001E

2 Section Reach-In Refrigerators

1-1045, 1-104501E 2-2045, 2-204501E 4-4045, 4-404501E

3 Section Reach-In Refrigerators

1-1070, 1-107001E 2-2070, 2-207001E 4-4070, 4-407001E

1 Section Reach-In Freezers

1-1020F, 1-1020F01E 2-2020F, 2-2020F01E 4-4020F, 4-4020F01E


1-1045F, 1-1045F01 2-2045F, 2-2045F01 4-4045F, 4-4045F01


1-1070F, 1-1070F01 2-2070F, 2-2070F01 4-4070F, 4-4070F01

-10° Freezers 1-1024UF, 1-1045UF 2-2024UF, 2-2045UF 4-4024UF, 4-4045UF

7000 Series Reach-In Refrigerators

7-7020, 7-7045, 7-7070

7000 Series Reach-In Freezers

7-7020FT, 7-7045FT, 7-7070F

Narrow Body Reach-In Refrigerators

1-1020N, 2-2020N, 4-2020N

Narrow Body Reach-In Freezers

1-1020F, 2-2020F, 4-4020F

Wide Body Reach-In Refrigerators

1-1024, 2-2024, 4-4024

Wide Body Reach-In Freezers

1-1024F, 2-2024F, 4-4024F

Pass-Thru Refrigerators

1 Section Pass-Thru Refrigerators

1-1020P 2-2020P 4-4020P


1-1045P 2-2045P 4-4045P


1-1070P 2-2070P 4-4070P

Glass Door Reach-In Refrigerators 1 Section

Glass Door Reach-Ins 1-1020GD, 2-2020GD, 4-4020GD

2 Section Glass Door Reach-Ins

1-1045GD, 1-1045X, 1-1045PGD,

1-1045XPGD, 2-2045GD, 2-2045X

2-2045PGD, 2-2045XPGD

4-4045GD, 4-4045X 4-4045PGD, 4-4045XPGD

3 Section Glass Door Reach-Ins

1-1070GD, 1-1070PGD, 2-2070GD,

2-2070PGD, 4-4070GD, 4-4070PGD

Dual Temps

1 Section Dual Temps

DT1-102001E DT2-202001E DT4-402001E


DT1-1045 DT2-2045 DT4-4045


DT1-1070 DT1-1070F DT2-2070 DT2-2070F DT4-4070 DT4-4070F

Wide Body Dual Temps DT1-102401E DT2-202401E DT4-402401E

1-2

Section 1General Information

Roll-In Refrigerators and Freezers Roll-In Refrigerators (65" cart 1 Section)

L1-1001 L2-2001 L4-4001

L1-1001RT L2-2001RT L4-4001RT

L1-1001GD L2-2001GD L4-4001GD

Roll-In Refrigerators (65" cart 2 Section)

L1-1002 L2-2002 L4-4002

L1-1002RT L2-2002RT L4-4002RT

L1-1002GD L2-2002GD L4-4002GD


L1-1003 L2-2004 L4-4003

L1-1003GD L2-2003GD L4-4003GD


H1-1001 H2-2001 H4-4001

H1-1001RT H2-2001RT H4-4001RT

H1-1001GD H2-2001GD H4-4001GD


H1-1002 H2-2002 H4-4002

H1-1002RT H2-2002RT H4-4002RT

H1-1002GD H2-2002GD H4-4002GD

Roll-In Freezers (65" 1 Section)

L1-1001FE L2-2001FE L2-4001FE

Roll-In Freezers (65" 2 Section)

L1-1002FE L2-2002FE L4-4002FE

Heated Holding Cabinets


(1 Section)

1020-H 2020-H 4020-H


(2 Section)

1-1045-H 2045-H 4045-H

Narrow Body Heated Holding Cabinets

1020N-H

Pass Thru Heated Holding Cabinets

1020-HP 2020-HP 4020-HP 1045-HP 2045-HP 4045-HP

Roll-In Heated Holding Cabinets


(1 Section)

L1-1001H L2-2001H L4-4001H

L1-1001HRT L2-2001HRT L4-4001HRT H1-1001H H2-2001H H4-4001H

H1-1001HRT H2-2001HRT H4-4001HRT


(2 Section)

L1-1002H L2-2002H L4-4002H

L1-1002HRT L2-2002HRT L4-4002HRT H1-1002H H2-2002H H4-4002H

Bakery Cabinets

Bakery Retarders (1 Section)

H5-5001 H5-5001RT

Bakery Retarders (2 Section)

H5-5002 H5-5002RT

Bakery Proofers (1 Section)

P5-5001

Bakery Proofers (2 and 3 Section)

P-5002 P-5003

Pizza Proofer (2 Section)

H4-4002HD

1-3

Section 1 General Information

Base Mount Refrigerators and Freezers Base Mount Refrigerators

(24" Wide) 1-1014 2-2014 4-4014

Base Mount Refrigerators (27.5" Wide)

1-1018 2-2018 4-4018

Base Mount Freezers (24" Wide)

1-1014F 2-2014F 4-4014F

Base Mount Freezers (27.5" Wide)

1-1018F 2-2018F 4-4018F

1-4


How to Read a Model Number

1-5

Section 1 General InformationModel/Serial Number Location The McCall data plate which includes the model number and serial number, as well as important electrical and technical information, is located on the left interior wall of the cabinet at approximately eye level.

For convenience and quick reference, record the model and serial numbers, voltage, and installation date in the spaces below:

Model Number Serial Number Voltage Installation Date

Warranty Warranty coverage on a McCall reach-in begins on the date it is installed. Please read the warranty certificate included with the cabinet for details.

PARTS COVERAGE 1. McCall warrants the cabinet, refrigeration,

and mechanical components against defects in materials and workmanship for a period of one (1) year from the date of original installation.

2. Refrigerator and freezer compressors are covered for five (5) years, depending upon the warranty purchased.

LABOR COVERAGE Labor is covered for (1) year.

EXCLUSIONS FROM WARRANTY 1. Normal start-up, maintenance, adjustments,

and cleaning. 2. Damage caused by improper installation of

the McCall cabinet as outlined in this manual.

3. Labor charges resulting from the inaccessibility of the McCall cabinet.

4. Damage to parts due to misuse, abuse, neglect, or accidents.

5. Premium labor rates due to holidays, overtime, travel time, mileage, etc., not specifically authorized by McCall prior to service.

6. Miscellaneous tools or materials charges. 7. Repairs due to modifications to the McCall

cabinet or refrigeration system not authorized by McCall in writing.

8. Claims for indirect or consequential damages, including food spoilage or product loss.

9. Damage due to faulty or incorrect power supply, floods, storms, or other acts or God.

Warranty Service To ensure warranty coverage, a qualified service company, authorized by McCall, must perform the warranty repair.

If the dealer the McCall reach-in was purchased from does not perform warranty service, please contact the McCall Service Department for assistance.

1-6


Warranty Certificate

Parts & Labor

Warranty

McCall warrants to the original Purchaser-User its product as per the following schedule:

All Parts: One year from original installation. Labor: One year from original installation. Compressor: One year from original installation.

The obligation of McCall under this warranty is limited to McCall repairing or replacing, free of cost to Purchaser-User, any part or parts, that to the judgement of McCall show evidence of defect, and provided that upon McCall authorization, said part or parts to be returned to McCall, transportation prepaid, for inspection and judgement. This warranty covers only McCall manufactured self-contained cabinets. This warranty is issued only to the original Purchaser-User, is not transferable, applies only to unit installed within the United States of America, its territories and Canada and is in lieu of all other warranties expressed or implied. McCall neither assumes nor authorizes any other person to assume for McCall any liability nor herein stated. McCall shall not be liable for any damage or delays occurring in transit, for any default or delays in performance caused by any contingency beyond its contract including wars, government restrictions or restraints, strikes, short or reduced supply of raw materials, fire, flood or other acts of God, not for damage or loss of any products, property, loss of income or profit due to malfunctioning of sold unit.

Manufacturing Plant 81 West Holly Street Parsons, TN 38363 Warranty Service: 1-888-REACH-IN Sales Phone: 731-847-5570

Sales FAX: 731-847-9012 Parts FAX: 731-847-5552 www.mccall.com

http://www.mccall.com/

2-1

Section 2 Installation Instructions

Section 2 Installation

General

CAUTION These instructions are of the utmost importance in assuring that the McCall cabinet operates as designed, and must be followed closely.

Please call your local McCall dealer or the McCall Service Department if you have any questions regarding proper installation.

Installing the Cabinet

CAUTION When selecting a permanent location for the cabinet, observe the following guidelines. Failure to do so may cause reduced performance and efficiency, cause damage, and void your warranty.

CABINET LOCATION GUIDELINES • Install the cabinet in an indoor environment only. • The air temperature entering the refrigerator or

freezer condenser should be between 55°F (13°C) and 100°F (38°C).

• Allow space for air circulation in the refrigeration condensing unit compartment on refrigerators and freezers. The minimum space requirements are: • 10" (25 cm) on top • 4" (10 cm) at the back • 4" (10 cm) on each side

• The floor must be strong enough to support the weight of the cabinet and product load.

CAUTION A fully loaded reach-in or roll-in cabinet can weigh more than 3,000 pounds.

Cabinet Clearances (Typical Single Door Cabinet Shown) E-3042-B

SIDE VIEW FRONT VIEW

TOP VIEW

10” 10” 4”

4” 4” 4”

2-2

Installation Instructions Section 2Uncrating

WARNING Never attempt to tilt the cabinet alone. Always use two or more people when tilting the cabinet to remove the shipping skid or to move it through doorways.

1. Remove the bottom shipping skid using one

of the methods below: • Lay the cabinet on its back, elevated and

supported by wooden blocks. Remove the skid mounting bolts and separate the skid from the cabinet.

• Tilt the cabinet from side to side and remove the mounting bolts. Support the weight of the cabinet apart from the skid.

2. Install the legs or casters and torque them to 360 inch-pounds. Refer to the drawing at right.

NOTE: Roll-in style cabinets do not have legs or casters. Refer to the drawing at right for ramp installation.

3. Return the cabinet to the upright position. 4. Remove any remaining crating materials.

CAUTION If the cabinet was placed on its back while moving it or while removing the bottom shipping skid, wait at least two hours after returning the cabinet to the upright position before starting the refrigeration system.

CAUTION Never use sharp instruments to cut the plastic or cardboard crating materials. Damage to the cabinet exterior may result.

Installing Cabinet Legs

Ramp Installation

SV1342

THREAD LEVELING LEG INTO BASE OF

CABINET

E-3043-B

THREAD FOOT IN AS FAR AS POSSIBLE

LIP OF RAMP GOES INTO SLOT AT

FRONT OF CABINET THRESHOLD

RAMP

CABINET THRESHOLD

2-3

Section 2 Installation InstructionsLeveling the Cabinet The cabinet must be leveled after it is positioned in its permanent location. This ensures proper door alignment on all cabinets, and adequate condensate water drainage and proper refrigeration system operation on refrigerators and freezers.

Follow the appropriate procedure below.

LEVELING A REACH-IN CABINET

CAUTION If casters are installed instead of legs, the floor must be leveled before final positioning of the cabinet.

1. Place a level on top of the cabinet. 2. Turn the leveling foot of the lowest corner

leg to center the bubble in the level. 3. Adjust each of the other corners until the

bubble is centered and the cabinet is stable. 4. Re-check the cabinet from side to side and

from front to rear with the level. LEVELING A ROLL-IN CABINET Roll-in cabinets are designed to sit directly on the floor without legs or casters.

1. Use shims to level the cabinet if necessary. 2. Seal the bottom perimeter of the cabinet to

the floor with NSF-approved silicone. 3. Install the ramp(s). Refer to the drawing on

the previous page.

Shelf/Tray Slide Installation SHELVES 1. Determine the desired shelf location.

NOTE: The shelves may be located at any position in 1" increments. Optimum spacing is one shelf near the bottom of the cabinet, one shelf near center height, and one shelf at eye level (refer to drawing).

2. Install four clips per shelf, one at each corner. The shelf clips slip into the 3/8" holes and slide down.

3. Make sure that the clips are level from side to side and from front to rear at each corner.

4. Install the shelves with the smaller wires running from front to back.

Shelf Installation

SER.3

SHELF SUPPORT

STANDARD SHELF CLIP

2-4

Installation Instructions Section 2Electrical RequirementsAll cord-connected units should be plugged into a grounded and properly sized electrical outlet with appropriate overcurrent protection. Refer to the drawing below for electrical plug configurations.

5-20P and 5-15P Electrical Plug Configurations

All permanently connected (hard wired) units are fitted with a power junction box and 6" pigtail wires for power connection.

Connect one end of the power line to the pigtail from the cabinet junction box. Connect the other end to a properly sized electrical source.

As a rule, the power lines must be enclosed inside a conduit secured to the power junction boxes on both ends.

CAUTION Power installation must be in compliance with the National Electrical Code and all applicable local and state codes.

WARNING Never use an extension cord.

Never alter the power cord or plug supplied with the cabinet.

After the power source has been connected, turn on the main power switch. The switch is located on the cabinet top, behind the front louvered panel.

Electrical Specifications HEATED CABINETS

Product Type

Self-Contained Base Models

Voltage/ Phase/Cycles

Total Amps

Maximum Fuse Size

ANSI Electrical Plug Configuration

115/60/1 14.6 20 amp 5-20P 20H 230/60/1 7.5 15 amp Hard-Wired 115/60/1 14.6 20 amp 5-20P 20HP 230/60/1 7.5 15 amp Hard-Wired 115/60/1 14.6 20 amp 5-20P 45H 230/60/1 7.5 15 amp Hard-Wired 115/60/1 14.6 20 amp 5-20P

Reach-In Heated Cabinets

45HP 230/60/1 7.5 15 amp Hard-Wired

H01H 240/60/1 6.5 15 amp Hard-Wired H01HRT 240/60/1 6.5 15 amp Hard-Wired

L01H 240/60/1 6.5 15 amp Hard-Wired L01HRT 240/60/1 6.5 15 amp Hard-Wired H02H 240/60/1 7.0 15 amp Hard-Wired L02H 240/60/1 7.0 15 amp Hard-Wired

Roll-In Heated Cabinets

L02HRT 240/60/1 7.0 15 amp Hard-Wired

SER.4

5-20P 5-15P

2-5

Section 2 Installation InstructionsREFRIGERATORS AND FREEZERS

Product Type

Self-Contained Base Models

Voltage/ Phase/Cycles

Total Amps

Maximum Fuse Size

ANSI Electrical Plug Configuration

20,20P 115/60/1 8.0 15 amp 5-15P 20GD 115/60/1 11.5 15 amp 5-15P

20PGD 115/60/1 16.0 20 amp 5-20P 45 115/60/1 10.0 15 amp 5-15P

45P 115/60/1 12.0 15 amp 5-15P 45GD 115/60/1 16.0 20 amp 5-20P

45PGD 208/230/60/1 15.0 20 amp Hard-Wired 45XPGD 208/230/60/1 17.0 20 amp Hard-Wired

70 115/60/1 13.3 20 amp 5-20P 70P 208/230/60/1 11.6 15 amp Hard-Wired

70GD 208/230/60/1 15.3 20 amp Hard-Wired

Reach-In Refrigerators

70PGD 208/230/60/1 14.4 20 amp Hard-Wired 20F 115/60/1 12.4 15 amp 5-15P

20FP 115/60/1 15.0 20 amp 5-20-P 20FGDE 115/60/1 16.0 20 amp 5-20-P

45F 115/60/1 16.0 20 amp 5-20-P 45FP 208/230/60/1 ---- 15 amp Hard-Wired

45FGD 208/230/60/1 ---- 20 amp Hard-Wired 70F 208/230/60/1 ---- 25 amp Hard-Wired

70FP 208/230/60/1 ---- 25 amp Hard-Wired

Reach-In Freezers

70FGD 208/230/60/1 ---- 25 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P H01

208/230/60/1 7.5 15 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P HO1RT

208/230/60/1 7.8 15 amp Hard-Wired 115/60/1 13.1 15 amp 5-15P H01GD

208/230/60/1 9.0 15 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P L01

208/230/60/1 7.5 15 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P L01RT

208/230/60/1 7.8 15 amp Hard-Wired 115/60/1 13.1 15 amp 5-15P L01GD

208/230/60/1 9.0 15 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P H02

208/230/60/1 9.1 15 amp Hard-Wired H02RT 208/230/60/1 ---- 20 amp Hard-Wired

H02GD 208/230/60/1 ---- 20 amp Hard-Wired 115/60/1 12.0 15 amp 5-15P L02

208/230/60/1 9.1 15 amp Hard-Wired L02RT 208/230/60/1 ---- 15 amp Hard-Wired

L02GD 208/230/60/1 ---- 20 amp Hard-Wired H03 208/230/60/1 ---- 20 amp Hard-Wired L03 208/230/60/1 ---- 20 amp Hard-Wired

Roll-In Refrigerators

L03GD 208/230/60/1 ---- 25 amp Hard-Wired 115/60/1 16.0 20 amp 5-20P L01FE

208/230/60/1 10.6 20 amp Hard-Wired Roll-In

Freezers L02FE 208/230/60/1 ---- 25 amp Hard-Wired

14 115/60/1 10.0 15 amp 5-15P 18 115/60/1 10.0 15 amp 5-15P

Base-Mount Refrigerators

36 115/60/1 12.0 15 amp 5-15P 14F 115/60/1 12.0 15 amp 5-15P 18F 115/60/1 12.0 15 amp 5-15P

Base-Mount Freezers

36F 115/60/1 15.0 20 amp 5-20P

2-6

Installation Instructions Section 2

THIS PAGE INTENTIONALLY LEFT BLANK

3-1

Section 3 OperationSection 3 Operation

Sequence of OperationREFRIGERATORS - SELF-CONTAINED COOLING CYCLE With the main ON/OFF switch in the ON position, the current flows, energizing the evaporator fan motors.

Current also flows through the closed contacts of the temperature control, energizing the condenser fan motor and the compressor.

OFF CYCLE When the temperature control senses the proper temperature, it opens, shutting off the refrigeration system.

The refrigeration system remains off until the temperature control senses approximately 38°F (3.3°C). (This also keeps the evaporator defrosted.) At that time, the temperature control closes and starts the refrigeration system.

REFRIGERATORS - REMOTE COOLING CYCLE With the main ON/OFF switch in the ON position, the current flows, energizing the evaporator fan motors.

Current also flows through the closed contacts of the temperature control, energizing the liquid line solenoid valve. The increase in suction pressure causes the contacts on the low pressure switch to close, energizing the refrigeration system.

OFF CYCLE When the temperature control senses the proper temperature, it opens, shutting off the liquid line solenoid valve. The drop in suction pressure causes the low pressure switch to open, de-energizing the refrigeration system.

The refrigeration system remains off until the temperature control senses approximately 38°F (3.3°C). (This also keeps the evaporator defrosted.) At that time, the temperature control closes and starts the refrigeration system.

3-2

Operation Section 3FREEZERS - SELF-CONTAINED COOLING CYCLE With the main ON/OFF switch in the ON position, the current flows, energizing the automatic defrost time clock.

Current also flows through the closed contacts of the temperature control, energizing the condenser fan motor(s) and the compressor.

With contact N closed on the automatic defrost time clock, current will flow through the normally open (N.O.) light/fan switch contacts (with the door closed).

When the evaporator coil temperature reaches 30 to 35°F (-1.1 to 1.7°C), the defrost end and fan delay thermostat closes, energizing the evaporator fans.

DEFROST CYCLE At preset times on the automatic defrost time clock, the contacts switch to defrost the evaporator. Contact N opens, de-energizing the evaporator fan motor(s). Contact #4 opens, de-energizing the refrigeration system. Contact #1 closes, energizing the evaporator defrost heater.

As the evaporator temperature rises, the defrost end and fan delay thermostat opens to terminate the defrost cycle. Contact #1 opens, de-energizing the defrost heater. Contacts N and #4 close, energizing the refrigeration system.

OFF CYCLE When the temperature control senses the proper temperature, it opens, shutting off the refrigeration system.

FREEZERS - REMOTE COOLING CYCLE With the main ON/OFF switch in the ON position, the current flows, energizing the automatic defrost time clock.

Current also flows through the closed contacts of the temperature control, energizing the liquid line solenoid valve. The increase in suction pressure closes the contacts on the low pressure switch, energizing the refrigeration system.

With contact N closed on the automatic defrost time clock, current flows through the normally open (N.O.) light/fan switch contacts (with the door closed).

When the evaporator coil temperature reaches 30 to 35°F (-1.1 to 1.7°C), the defrost end and fan delay thermostat closes, energizing the evaporator fans.

DEFROST CYCLE At preset times on the automatic defrost time clock, the contacts switch to defrost the evaporator. Contact N opens, de-energizing the evaporator fan motor(s). Contact #4 opens, de-energizing the refrigeration system. Contact #1 closes, energizing the evaporator defrost heater.

As the evaporator temperature rises, the defrost end and fan delay thermostat opens to terminate the defrost cycle. Contact #1 opens, de-energizing the defrost heater. Contacts N and #4 close, energizing the refrigeration system.

OFF CYCLE When the temperature control senses the proper temperature, it opens, shutting off the liquid line solenoid valve. The drop in suction pressure causes the low pressure switch to open, de-energizing the refrigeration system.

3-3

Section 3 OperationCondensate Water Removal (Refrigerators and Freezers) McCall cabinets are equipped with condensate vaporizer systems.

Remote units use an electrically operated system.

Most self-contained units use energy-saving hot gas supplied by the refrigeration system lines. No drain connection is required.

Defrost Systems GENERAL Refrigerator coils are kept below the freezing point (32°F). During compressor “off” time, the evaporator fan continues to circulate 38°F refrigerator compartment air through the evaporator coil. This air circulation raises the coil temperature above the freezing point, melting any frost that may have accumulated.

The run-off water is drained into the vaporizer pan and is evaporated by the hot gas refrigeration line during compressor “on” time.

Freezer coils are defrosted electrically at user-determined times.

NOTE: A freezer’s evaporator fans do not run immediately upon start-up or during and immediately following the defrost cycles. The fans start when the coil reaches a cold temperature. This prevents the fans from blowing heated air on the stored products.

DEFROST SETTINGS Important

Set the defrost timer to defrost the reach-in during the lowest usage periods.

Each defrost tripper represents 15 minutes of defrost time. At the factory, the timer is set for four automatic defrost cycles daily at 4:00AM, 10:00AM, 4:00PM, and 10:00PM respectively. Each defrost cycle is programmed for 45 minutes duration. Upon startup, set the clock for the correct time of day by rotating the clock face until the correct time is at the arrow on the face of the timer.

NOTE: If the defrost termination thermostat fails to close, the fail safe setting on the timer will terminate the defrost.

The timer starts the defrost cycle automatically at predetermined times. A setting of two to four defrost cycles per day is typical. For heavier frost loads, additional cycles may be required.

When the defrost cycle begins:

1. Switch 2 to 4 opens in the time clock, breaking the circuit to the room thermostat, liquid line solenoid, and evaporator fan motors. This allows the compressor to pump down and shut off. Simultaneously, switch 1 to 3 closes in the timer, energizing the defrost heaters.

2. The heaters increase the coil temperatures above 32°F, melting the frost off the coil.

3. When the coil warms to approximately 55°F, the defrost termination thermostat closes and energizes the switching solenoid in the timer. At this time, switch 1 to 3 in the timer opens, terminating the defrost heaters. Simultaneously, switch 2 to 4 closes in the time clock, energizing the temperature control circuit.

4. Suction pressure rises, the low pressure control closes, and the compressor starts.

5. The fan relay closes when the coil temperature reaches approximately 30°F. This energizes the fan motors.

6. The system operates in the refrigeration cycle until another defrost cycle is initiated by the timer.

3-4

Operation Section 3Temperature ControlsREFRIGERATORS AND FREEZERS The temperature controls are factory-set to maintain an average temperature of 38°F in refrigerators, and an average temperature of 0°F in freezers.

The temperature variance is 6-8 degrees. A freezer should run between -2 to -3°F and +3 to +4°F. A refrigerator should run between +35 to +36°F and +41 to +42°F.

For a different cabinet temperature setting, turn the temperature control knob, located behind the front cabinet louver.

CAUTION Setting the temperature control to the coldest setting may cause the coil and/or air ducts to freeze and ice up. This will eventually result in a warmer cabinet temperature.

If ice accumulation occurs and the temperature is lower than the guidelines, turn the control knob to a warmer setting.

CAUTION Allow the reach-in to reach proper operating temperature before filling it with product. Do not place hot or steaming foods in the cabinet.

REACH-IN HEATED CABINETS Single-section reach-in heated cabinets are designed to maintain a temperature of up to 170°F. Two-section and three-section cabinets can maintain a temperature of up to 140°F.

The temperature control knob is located on the top front louver. Turn the knob clockwise to raise the temperature, and counterclockwise to lower the temperature.

ROLL-IN HEATED CABINETS The temperature control panel on a roll-in heated cabinet is located on the front louver panel.

Roll-In Heated Cabinet Control Panel To adjust the interior cabinet temperature:

1. Make sure that the main power switch (located behind the front louver) and the on/off switch (on the front louver panel) are both ON.

2. Press the SET pad once. “SP1” is displayed. 3. Press the SET pad again to display the

numerical set point. 4. To change the temperature, press the up or

down arrow. 5. Press the SET pad repeatedly until the

display goes blank. After 5 seconds, the screen will display the interior temperature of the cabinet.

NOTE: While the heating element is energized, a small LED light is illuminated between the first 2 digits of the temperature display.

Important If the programming sequence is interrupted for more than 15 seconds, or not completed through Step 5 (blank screen), the unit will automatically revert to the temperature display mode without accepting the new setting.

DISPLAY SET

°F

LED (ILLUMINATED WHEN HEAT IS ON)

3-5

Section 3 OperationLoading Shelves (Reach-In Cabinets) For maximum operating efficiency, load the shelves with space between the stored items. This allows air to circulate properly. Refer to the drawing below.

CAUTION Do not store more than 250 pounds of product on any shelf, and no more than 800 pounds of product per cabinet.

CAUTION Store products with high acid content (such as lettuce, other fresh vegetables or fruits, salad dressings, etc.) in closed containers. This will prevent corrosion on the evaporator coil and other metal parts in the air distribution system.

Important Uncovered food will dehydrate much more rapidly than covered food. For best food quality, always store in covered container.

WARNING In a heated cabinet, the shelves, interior cabinet surfaces and food containers are hot. Use care when storing or removing product.

Loading the Shelves

Loading Carts (Roll-In Cabinets) Roll-in cabinets are designed to accept carts of pre-heated food (heated units) or pre-chilled or frozen food (refrigerators or freezers).

Cart guides have been installed in each cabinet bay to keep the cart away from the interior walls. Center the cart(s) in the bay(s) for best air circulation. Refer to the drawing below.

Important Uncovered food will dehydrate much more rapidly than covered food. For best food quality, always store in covered containers.

WARNING In a heated cabinet, the cart(s), interior cabinet surfaces and food containers are hot. Use care when storing or removing product.

Positioning a Cart in the Cabinet SER.5

EVAPORATOR COIL

EVAPORATOR FAN

RETURN AIR

SUPPLY AIR

SHELF

SHELF

SHELF

DAMPER

3-6

Operation Section 3Adjustments and CalibrationsADJUSTMENTS Cabinet doors may require some adjustment after a period of usage, depending upon the frequency of door openings. This is normal. Follow the appropriate procedure below:

Solid Door Adjustment 1. Remove the metal hinge covers that conceal

the three hinge mounting screws. Gently pry it off with a flat-bladed screwdriver.

Hinge/Hinge Cover 2. Loosen the three hinge mounting screws

approximately two rotations, using a Phillips screwdriver.

3. While a second person firmly pushes the door closed to the front face of the cabinet, re-tighten the screws.

4. Re-install the hinge covers.

Glass Door Adjustment To adjust the spring tension:

1. Locate the adjustment bushing on the hinges. This bushing is on top of the hinge for right-hand doors and on the bottom for left-hand doors.

2. Insert a small nail (1/8") into a hole in the adjustment bushing. Wind the bushing clockwise until the pin can be removed from the bushing.

Hinge Adjustment 3. Continue winding the bushing clockwise

until the desired tension is achieved. 4. Re-insert the bushing pin.

CAUTION Do not over-tighten the hinge spring.

McCall recommends adjusting the hinge adjustment bushings one hole at a time.

E-3044-B

HINGE COVER

HINGE

HINGE MOUNTING SCREWS

DOOR

ADJUSTMENT BUSHING

INSERT A SMALL NAIL

TURN CLOCKWISE

3-7

Section 3 OperationCALIBRATIONSOccasionally, the rigors of shipping and installation can shift the thermometer out of proper adjustment.

If the accuracy of the thermometer is in question, place another thermometer inside the cabinet at approximately mid-height and compare the readings.

If the thermometer requires adjustment, follow the appropriate procedure below.

Digital Thermometer Calibration 1. Lift up on the front cabinet louver (about

5/8" to 1") to disengage the keyhole slots from the four screws in the cabinet front. Remove the louver.

Removing the Front Cabinet Louver 2. Cut the plastic tie holding the thermometer

probe wire, taking care not to cut the wire. This releases the full length of the probe wire, allowing the louver to be lowered to the floor.

Important Do not disconnect the probe wire from the rear of the thermometer display.

3. Locate the two dip switches on the

thermometer rear. Set both switches to ON.

4. Locate the blue calibration screw in the upper right corner of the thermometer. Turn the screw clockwise to increase the temperature reading or counterclockwise to decrease the reading.

CAUTION Do not apply extreme pressure to the adjustment screw. Damage to the digital display may result.

5. Reset the two dip switches to their original

position. 6. Re-install the front louver to the cabinet.

Position the keyhole slots in the louver rear on the four screws in the cabinet front. Push it straight down until the louver locks into place.

7. Re-tie or tape the excess length of probe lead wire.

Dial Thermometer Calibration 1. Gently pry off the clear thermometer cover

lens with a small flat-bladed screwdriver. 2. While carefully holding the dial indicator

needle with one hand, turn the slotted center pivot with a flat-bladed screwdriver. Turn clockwise to decrease the reading and counterclockwise to increase the reading.

3. Replace the clear thermometer cover lens by pressing it into place around the perimeter.

LIFT UP AND OFF

SER.1

3-8

Operation Section 3


4-1

Section 4 MaintenanceSection 4

Maintenance Cleaning Recommendations EXTERIOR Clean cabinet exterior surfaces with a solution of mild soap and water. To minimize streaking, follow with a fresh water rinse.

If stainless steel becomes discolored, scrub only in the direction of the finished grain.

For high shine, see your kitchen equipment dealer for a high-quality stainless steel polish.

CAUTION Do not use steel wool, caustic soap, or abrasive cleaners, as these may damage the metal finish. Alcohol-based cleaners may damage the nylon door cams.

INTERIOR Clean cabinet interior surfaces with warm water and baking soda, applied with a cloth or sponge.

The air duct and shelf support standards can be removed without special tools to facilitate cleaning.

Wash door gaskets weekly with a mild soap and water solution, followed by a fresh water rinse.

While cleaning, check the door gaskets for proper sealing. Adjust if needed.

CAUTION Never use cleaners that are not approved for use where food may come into contact with cabinet interior surfaces.

CAUTION Do not use steel wool, caustic soap, or abrasive cleaners, as these may damage the metal finish.

4-2

Maintenance Section 4CLEANING THE CONDENSER COIL (REFRIGERATORS AND FREEZERS)

WARNING Disconnect electric power before cleaning.

For efficient operation, it is very important to clean the condenser coil surface and keep it free of dust, dirt, and lint. McCall recommends checking the condition of the condenser coil once a month.

The condensing unit fan draws dust, lint and small particles to the condenser coil, where it forms a “blanket” on the coil surface. This is normal and should be periodically removed.

CAUTION Failure to clean and maintain the condenser coil properly will result in reduced air circulation through the condenser fins. This will cause reduced efficiency, high operating pressures, and possible shortened compressor life.

CONDENSER CLEANING PROCEDURES One or more of the following methods may be used to clean the condenser coil surface, depending upon the extent of the build-up on the fins.

WARNING Condenser fins are sharp. Use care when working around them.

Method 1 Remove light build-up with a soft brush or a vacuum with a brush attachment. Brush the condenser fins from top to bottom, not from side to side. Shine a light through the fins to check for dirt inside the condenser.

Method 2 Clean moderately dirty fins with compressed air, blowing from the inside out. Follow by brushing, if necessary.

Method 3 Clean with a commercial condenser coil cleaner, available from a kitchen equipment dealer. Follow the directions and precautions supplied with the cleaner.

After cleaning, straighten any bent condenser fins with a fin comb.

Using a Fin Comb

CLEANING THE FAN BLADES AND MOTOR If necessary, clean the fan blades and motor with a soft cloth. If it is necessary to wash the fan blades, cover the fan motor to prevent moisture damage.

COMB DOWN ONLY

FIN COMB

CONDENSER

4-3

Section 4 MaintenanceComponent Replacement Procedures

WARNING Disconnect electric power before performing any service.

EVAPORATOR FAN MOTOR

1 Section Refrigerators and Freezers If Mounting Bracket Is Not Broken 1. Remove Windrunner air distribution duct

from the cabinet interior ceiling (Figure 4-1).

Figure 4-1

2. Disconnect the (2) terminal connectors from the motor (Figure 4-2).

Figure 4-2

3. Using a 1/4" nut driver, remove the (2) motor mounting screws and separate the motor from the bracket (Figure 4-3).

Figure 4-3

4. Reverse steps 1-3 to replace motor. 5. Reconnect power and return to normal use. NOTE: The evaporator-housing lid may be removed to provide added lighting and visibility (Figure 4-4).

Figure 4-4

4-4

Maintenance Section 4EVAPORATOR FAN MOTOR

1 Section Refrigerators and Freezers If Mounting Bracket Is Broken 1. Remove the Windrunner air distribution duct

from the interior ceiling (Figure 4-5).

Figure 4-5

2. Disconnect the (2) terminal connectors from the motor (Figure 4-6).

Figure 4-6

3. Using a 1/4" nut driver, remove the (2) motor

mounting screws and separate the motor from the bracket (Figure 4-7).

Figure 4-7

4. Remove the evaporator-housing lid, located on the cabinet top (Figure 4-8).

Figure 4-8

5. Remove the coil mounting screws and carefully lift the coil, only enough to gain access to the motor mounting screws (Figure 4-9).

Continued next page…

4-5

Section 4 Maintenance

Figure 4-9

6. When the coil has been moved, remove the evaporator drain pan by removing (4)-mounting screws.

7. Remove the bracket mounting screws and replace bracket-motor assembly.

8. Reverse Steps 1-5 to complete motor installation.

9. Reconnect power and return to normal use. LIGHT SWITCH 1. Remove the door by lifting straight up

(Figure 4-10). Carefully set the door aside.

Figure 4-10

2. Pry off the TOP hinge cover on the cabinet hinge flange with a flat blade screwdriver or flat scraper (Figure 4-11).

Figure 4-11

3. Remove the (3) hinge mounting screws and carefully pull the hinge flange from the cabinet front.

4. Slide the light switch and switch retainer from the hinge. Unplug the switch (Figure 4-12).

Figure 4-12

5. Install the new switch into the hinge and replace the door hinge onto the cabinet front. Install the (3) mounting screws. Snug the screws but DO NOT tighten fully.

6. Re-hang the door onto the hinges. 7. Make sure that the door is hanging plumb

and that the door operates properly. 8. Tighten the screws and replace the hinge

cover.

4-6

Maintenance Section 4EVAPORATOR FAN MOTOR

2 and 3 Section Refrigerators and Freezers 1. Remove the evaporator-housing lid, located

on the cabinet top, exposing the evaporator fan motor (Figure 4-13).

Figure 4-13

2. Remove the wiring box cover. Locate and disconnect the fan motor wires (Figure 4-14).

Figure 4-14

3. Remove the fan bracket mounting screws.

Disconnect the wiring terminals from the motor. Remove the defective motor and replace with the new motor. Replace screws (Figure 4-15).

Figure 4-15

4. Reconnect motor wires in wiring box. Check to make sure that wire access hole through the evaporator box is properly sealed and reseal if necessary.

5. Replace wiring box cover. 6. Replace the evaporator-housing lid. 7. Reconnect power and return to normal use.

4-7

Section 4 MaintenanceTEMPERATURE CONTROL

Refrigerators & Freezers 1. Remove the front louvered hatch cover by

lifting straight up and pulling straight out (Figure 4-16).

Figure 4-16

2. Lay the hatch cover on top of the freezer evaporator housing.

Important Do not disconnect the wires to the digital thermometer display.

3. Remove the (6) screws from the thermostat/wiring box front (Figure 4-17).

Figure 4-17

4. Remove the (2) mounting screws and the

control knob from the face of the control. 5. Remove the lid from the evaporator housing

by unlocking the (4) hold-down latches (Figure 4-18).

Figure 4-18

6. Remove the temperature control sensor from the aluminum sleeve by pulling out slowly (Figure 4-19). Remove the sensor from the evaporator housing.

Figure 4-19

7. Replace the temperature control and install sensor.

8. Reset the temperature to setting #4 to #5 on refrigerators and #5 to #6 on freezers.

9. Monitor temperature for final control adjustments.

4-8

Maintenance Section 4TEMPERATURE CONTROL – DIAL TYPE

Heated Holding Cabinets 1. Turn off the main power to the cabinet. 2. Loosen the control box by removing the two

screws on the front louvered hatch cover. NOTE: Control may be accessed easier from the cabinet rear.

3. Remove the temperature control knob and take out the two mounting screws.

4. Disconnect the wire leads to the temperature control.

5. Reverse steps 1-4 to install the new control.

TEMPERATURE CONTROL – DIGITAL TYPE

Heated Holding Cabinets 1. Turn off the main power to the cabinet. 2. Remove the front louvered hatch cover by

lifting up and pulling straight out. 3. Remove the 2 mounting screws that secure

the temperature control box to the front louvered hatch cover.

4. Disconnect the wires from the back of the digital control box.

5. Press the locking tabs inward on the control box and slide it out of the louvered hatch cover.

6. Reverse steps 1-5 to replace the control, (refer to Figure 4-20 for correct wiring).

Figure 4-20

SPI SENSOR POWER NO C NC G S - +

OR

AN

GE

To “A” terminal on relay

Connect with Red wire

from transformer

(not

OR

AN

GE

PIN

K

BLA

CK

From Sensor

WH

ITE

From Sensor

PIN

K

Connect with Red wire from transformer

(not polarized & Pink wire

from “B” terminal on

relay

Digital Controller – Back View

4-9

Section 4 MaintenanceDEFROST HEATER ELEMENT 1. Remove the front lowered hatch cover by

lifting up and pulling straight out (Figure 4-21).

Figure 4-21

2. Remove lid of evaporator housing, located on top of unit (Figure 4-22).

Figure 4-22

3. Remove coil mounting screws (Figure 4-23) and lift coil up slowly exposing coil heater.

Figure 4-23

4. Disconnect coil heater wiring (Figure 4-24 on 1-section cabinets & Figure 4-25 on 2 and 3 section cabinets) and simply pull heater from coil mounting area.

Figure 4-24


4-10

Maintenance Section 4

Figure 4-25

5. Install new heater by gently tapping heater back into the mounting area by using a rubber mallet or similar object (Figure 4-26).

Figure 4-26

6. Reconnect wiring and reposition evaporator

coil. 7. Secure coil with mounting screws. 8. Reposition evaporator cover lid and lock

down latches. 9. Reattach the louvered hatch cover, making

sure that the thermometer connections are firmly engaged.

10. Return to normal use.

4-11

Section 4 MaintenanceEVAPORATOR DRAIN PAN HEATER ELEMENT

WARNING Disconnect the electric power to the freezer before proceeding with the following steps.

1. Remove front louvered hatch cover by lifting up and pulling straight out (Figure 4-27).

Figure 4-27

2. Remove the evaporator box cover lid (Figure 4-28).

Figure 4-28

3. Remove coil mounting screws and lift coil up

slowly, not to detach lines or wiring (Figure 4-29).

Figure 4-29

4. Disconnect the heater wires located in the wiring box (Figure 4-30) for 2 and 3 section cabinets or wiring bundle (Figure 4-31) for 1 section cabinets.

Figure 4-30


4-12

Maintenance Section 4

Figure 4-31

5. Replace drain pan heater and reconnect wiring.

6. Reposition evaporator coil and secure with mounting screws.

7. Reposition the evaporator housing cover and lock down latches.

8. Attach front louvered hatch cove, making sure that the thermometer connections are fully engaged.

9. Return to normal use.

HEATER ELEMENT

Heated Holding Cabinets 1. Turn off the main power to the cabinet. 2. Remove the right side blower panel by

removing the (13) screws. NOTE: Blower motor wiring may be disconnected to allow easier blower panel removal.

3. Disconnect the wiring leads to the element by loosening the nuts with a small wrench.

4. Replace the heater element. 5. Reverse steps 1-3 to re-install the wiring and

blower panel.

THERMAL LIMIT SWITCH



3. Disconnect the wiring leads to the limit switch.

4. Drill out the (2) rivets holding the switch in place.

5. Replace the limit switch and secure with rivets or screws.

6. Reverse steps 1-3 to re-install the wiring and blower panel.

BLOWER FANS



3. Disconnect the fan motor lead wires and replace motor.

4. Reverse steps 1-2 to re-install the wiring and blower panel.

4-13

Section 4 MaintenanceDIGITAL THERMOMETER DISPLAY AND PROBE 1. Remove the front louvered hatch cover by

lifting straight up and pulling straight out (Figure 4-32).

Figure 4-32

2. Unplug the thermometer probe from the back of the digital display module.

3. Unscrew from bracket the display module from the hatch cover back with a flat blade screwdriver or scraping tool (Figure 4-33).

Figure 4-33

4. Disconnect the (2) yellow wires from the probe harness. Remove the probe from the interior ceiling by loosening the mounting bracket screw (Figure 4-34).

Figure 4-34

5. Remove the Permagum sealant from the cabinet top where the probe wire penetrates the top. Carefully pull the probe wire through the cabinet top.

6. Feed the new probe wire through the top hole and reattach the probe and bracket to the interior ceiling.

7. Carefully, pull the wire taught and reseal the cabinet top hole with the Permagum.


4-14

Maintenance Section 48. Carefully align the module with the rectangle

cutout in the hatch cover (Figure 4-35).

Figure 4-35

9. Plug the probe wire terminal onto the back of the display module, making sure that the plug lines up with the pins on the module (Figure 4-36).

Figure 4-36

10. Reconnect the (2) yellow wires from the transformer with the gray leads on the probe.

11. Reinstall the hatch cover and secure any excess wire with a wire tie.

12. Check operation and return to normal service.

4-15

Section 4 MaintenanceDIGITAL THERMOMETER TRANSFORMER


1. Remove the front louvered hatch cover by lifting straight up and pulling straight out (Figure 4-37).

Figure 4-37

2. Remove the (6) screws from the wiring box front (Figure 4-38).

Figure 4-38

3. Disconnect the black and white wires on the

transformer from the power and neutral wires in the wiring box (Figure 4-39).

4. Disconnect the yellow wires on the transformer from the (2) gray wires on the transformer probe (Figure 4-39).

Figure 4-39

5. Remove the transformer from the evaporator housing and replace with the new transformer.

6. Reconnect all wiring. 7. Replace the top louvered hatch cover. 8. Power up the freezer. 9. Return to normal operation.

4-16

Maintenance Section 4DOOR HANDLE (SOLID DOORS) 1. Remove the foot from the door lock

assembly (Figure 4-40).

Figure 4-40

2. Pry off gray plug button (located in the rear center of the door) and a small section of the door gasket nearest the lock assembly (Figure 4-41and Figure 4-42).

Figure 4-41

3. Remove out the two mounting screws and

remove the door handle (Figure 4-43).

Figure 4-42

4. Reverse steps 1-3 to install the new door handle.

Figure 4-43

4-17

Section 4 MaintenanceDOOR HANDLE (GLASS DOORS) 1. Pry or lift off a small section of door gasket

behind the door handle, exposing the (2) handle mounting screws (Figure 4-44).

Figure 4-44

2. Remove the two mounting screws to release the handle.

3. Replace door handle. 4. You may need a rubber mallet to re-install

gasket.

DOOR HINGE (SOLID DOORS) 1. Remove the door by lifting straight up

(Figure 4-45). Carefully set the door aside.

Figure 4-45

2. Pry off the hinge cover with a thin flat blade screwdriver (Figure 4-46).

Figure 4-46


4-18

Maintenance Section 43. Remove the (3) three hinge mounting screws

from each hinge on the cabinet front (Figure 4-47). Replace the hinge and reattach with the screws.

Figure 4-47

4. Remove the (3) three hinged mounting screws from each flange on the door (Figure 4-48) and replace hinge.

Figure 4-48

5. Install the door and check operation.

DOOR GASKET (SOLID DOORS) 1. Remove the old gasket by pulling the gasket

from the foamed in retainer in the door (Figure 4-49).

Figure 4-49

2. Starting the upper left corner of the door, place the locking male lip into the retainer of the door.

3. Firmly press into place until the gasket locks. 4. If necessary, gently tap into place with a

rubber mallet.

4-19

Section 4 MaintenanceDOOR GASKET (GLASS DOORS) 1. Remove the old gasket by pulling the gasket

from the foamed in retainer in the door (Figure 4-50).

Figure 4-50

2. Starting the upper left corner of the door, place the locking male lip into the retainer of the door.

3. Firmly press into place until the gasket locks. 4. If necessary, gently tap into place with a

rubber mallet.

DOOR LOCK (SOLID DOORS) 1. Remove latch on lock assembly. 2. Remove the (2) two handle mounting screws

and carefully pull handle off the door. Refer to door handle replacement procedures for handle removal procedures.

3. Remove the remainder of the lock assembly and replace.

4. Check operation.

4-20

Maintenance Section 4VINYL BREAKER STRIPS (DOOR JAMBS)


1. Remove the flat vinyl breakers by gently

prying off with a flat-blade screwdriver (Figure 4-51).

WARNING Door heater wires lie directly behind the front edge of the flat breaker strips. Take care not to damage the wires.

Figure 4-51

2. Remove the corner blocks as necessary by slipping the male tab from the flat breaker.

3. Replace the breakers by starting each end

into the corner blocks and snapping into place.

4. Gently tap the breaker into place if necessary, using a rubber mallet (Figure 4-52).

Figure 4-52

4-21

Section 4 MaintenanceANTI-CONDENSATE DOOR HEATER WIRES


1. Remove the vinyl door breakers as described previously.

2. Carefully, pull the heater wire connections from the inside top corner.

3. Clip the connections, making sure to leave enough wire length to reconnect the new heater wire (Figure 4-53).

Figure 4-53

4. Remove the old heater wire. 5. Starting at the inside corner, carefully place

the new heater wire around the door perimeter, fitting it into the space between the primary breaker retainer and the metal cabinet face.

6. Connect each end of the heater wire to the leads in the corner.

7. Replace the breaker strips as described previously.

DEFROST TERMINATION/FAN DELAY SWITCH


1. Remove the evaporator-housing lid (Figure 4-54).

Figure 4-54

2. Locate the 3-wire defrost termination/fan delay switch, clamped to the suction line (Figure 4-55).

Figure 4-55


4-22

Maintenance Section 43. Remove the wiring box cover on the front of

the evaporator housing on 2 and 3 section cabinets (Figure 4-56). Wiring connections for 1 section cabinets are located inside evaporator housing (Figure 4-57).

Figure 4-56

Figure 4-57

4. Trace and disconnect the defrost termination/fan delay switch from the wiring bundle. Re-connect the new switch.

5. Attach the new switch to the suction line. 6. Replace the evaporator-housing lid. 7. Connect the power and resume normal

operation. NOTE: The evaporator fan will not restart until the fan delay switch senses 32°F from the suction line.

5-1

Section 5 TroubleshootingSection 5

Troubleshooting Troubleshooting GuideBefore requesting any service on your McCall cabinet, please check the following points.

This guide is not comprehensive; it is intended as a reference for solutions to common problems.

WARNING Disconnect electric power before performing any service.

Symptom Possible Cause Corrective Action Cabinet not running Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Power cord unplugged. Plug in power cord. Thermostat set too high. Set thermostat to lower temperature. Main power switch turned off. Turn main power switch on. Cabinet in defrost cycle.

(Freezer models) Wait for defrost cycle to finish.

Excessive amount of warm product placed in cabinet.

Allow adequate time for product to cool down.

Condensing unit runs for long periods or continuously

Prolonged door openings or door(s) ajar.

Make sure door(s) are closed when not in use. Avoid prolonged door openings.

(Refrigerator or Freezer)

Door gasket(s) not sealing properly. Check gasket condition. Adjust door or replace gasket if necessary.

Dirty condenser coil. Clean the condenser coil. Evaporator coil iced over. Turn unit off and allow coil to defrost.

Make sure thermostat is not set too cold. Also, check gasket condition.

Cabinet temperature Thermostat set too high. Set thermostat to lower temperature. is too high (Refrigerator or Freezer)

Poor air circulation in cabinet. Re-arrange product to allow proper air circulation.

Exterior thermometer is out of calibration.

Re-calibrate thermometer.

Excessive amount of warm product placed in cabinet.

Allow adequate time for product to cool down.

Prolonged door openings or door(s) ajar.

Make sure door(s) are closed when not in use. Avoid prolonged door openings.

Dirty condenser coil. Clean the condenser coil. Evaporator coil iced over. Turn unit off and allow coil to defrost.

Make sure thermostat is not set too cold. Also, check gasket condition.

Cabinet is noisy Loose part(s). Locate and tighten loose part(s). Tubing vibration. Ensure tubing is free from contact with

other tubing or components. Refrigerator is freezing product

Thermostat is set too low. Set thermostat to higher temperature.

5-2

Troubleshooting Section 5

Symptom Possible Cause Corrective Action Compressor will not Dirty condenser coil. Clean the condenser coil. start - hums and trips on overload protector

Not enough cabinet clearance for proper refrigeration system operation.

Move cabinet or make other adjustments to gain proper cabinet clearances.

(Refrigerator or Freezer)

Low voltage to cabinet. Check and correct incoming voltage to cabinet.

Cabinet temperature too low

Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker.

Both power switches not on. Turn on power switches. (Heated Cabinet) Control temperature set incorrectly. Refer to page 3-4 for temperature

setting procedure. Cabinet control will not change cabinet


temperature Both power switches not on. Turn on power switches. (Heated Cabinet) Control temperature set incorrectly. Refer to page 3-4 for temperature

setting procedure. Digital thermometer blank or displaying


incorrect temperature Main power switch turned off. Turn main power switch on. Thermometer probe wire

disconnected at thermometer back. Connect thermometer probe wire.

Display module requires calibration. Refer to page 3-7 for calibration procedure.

Digital thermometer displaying “LLL” or “HHH”

Display module requires calibration. Refer to page 3-7 for calibration procedure.

Evaporator Troubleshooting Chart Symptom Possible Cause Corrective Action

Main switch open. Close switch. Blown fuse. Replace fuse(s). Check for short circuits

or overload conditions. Defective motor. Replace motor. Defective timer or defrost thermostat. Replace defective component.

Fan(s) will not operate

Unit in defrost cycle. Wait for completion of cycle. Thermostat set too high. Adjust thermostat. Superheat too high. Adjust thermal expansion valve. System low on refrigerant. Locate and repair lea, recover,

evacuate and recharge.

Cabinet temperature too high

Coil iced up. Manually defrost coil. Check defrost controls.

Defrost duration is too long. Adjust defrost termination thermostat (if available).

Fan delay not delaying fans after defrost period.

Replace defective defrost thermostat.

Defective defrost thermostat or timer. Replace defective component.

Ice accumulating on ceiling around evaporator and/or on fan guards, venture, or blades.

Too many defrost cycles per day. Reduce number of defrost cycles per day.

Frost on coil after defrost

Coil temperature not getting heated. Check heater operation.

6-1

ection 6 Component Check ProceduresSection 6

Component Check Procedures

Main Power Switch FUNCTION Switches power to the reach-in on and off.

SPECIFICATIONS Double pole single throw (DPST)

CHECK PROCEDURES 1. Check for proper line voltage (± 10%). 2. Inspect the switch for proper wiring. 3. Inspect the terminals for clean, tight

connections. 4. Check across the switch terminals with a

voltmeter. Replace the switch if you do not obtain the results below:

Switch Position Voltage On 0 Off line

Temperature Control (Thermostat) FUNCTION Opens and closes to start and stop the compressor and condenser fan(s) to maintain a constant cabinet temperature.

SPECIFICATIONS Constant differential

Range 0°± 2°F (-17.8° ± -16.7°C) / 5°± 2°F (-15° ± -16.7°C)

CHECK PROCEDURES If the reach-in continues to run in the cooling cycle:

1. Turn the temperature control to the warmest setting.

2. Hook a voltmeter across the temperature control terminal leads.

3. If the voltmeter reads line voltage, the control has opened and is functioning normally. If the control fails to open, replace it.

If the reach in does not run:

1. Disconnect electrical power supply. 2. Turn the temperature control to the coldest

setting. 3. Isolate the temperature control and hook an

ohmmeter across the terminals. 4. If the ohmmeter registers continuity, the

control is good.

6-2

Component Check Procedures Section 6Light Switch FUNCTION Turns the interior cabinet light on as the reach-in door is opened.

SPECIFICATIONS Single pole push button switch.

CHECK PROCEDURES 1. Check for proper line voltage (± 10%). 2. Inspect the switch for proper wiring. 3. Inspect the terminals for clean, tight

connections. 4. Check across the switch terminals with a

voltmeter. Replace the switch if you do not obtain the results below:

Door Position

N.O. Contacts

N.C. Contacts

Closed 0 Line Open Line 0

Defrost Termination/Fan Delay Switch FUNCTION Terminates the defrost cycle and delays the start of the evaporator fan(s) after defrost.

SPECIFICATIONS Thermodisc

Open Temperature 55 ± 60°F (12.8 ± 15.6°C)

Close Temperature 35 ± 60°F (1.7 ± 15.6°C)

CHECK PROCEDURES 1. Hook a voltmeter across the N.O. terminals.

If, during the defrost cycle, the bimetal disc does not open when the evaporator reaches the specified temperature, replace the thermostat.

2. Hook a voltmeter across the N.C. terminals. If, after the defrost cycle, the bimeter disc does not close when the evaporator coil reaches the specified temperature, replace the thermostat.

6-3

ection 6 Component Check ProceduresDefrost Timer FUNCTION Initiates the defrost cycle at preset times to prevent evaporator frost buildup.

SPECIFICATIONS Grasslin

See page 3-3 for defrost timer adjustment.

CHECK PROCEDURES 1. Inspect the terminals for clean, tight

connections. 2. Verify that correct line voltage is at terminals

X and 3. Voltage at Terminals X and 3

Action

Correct If 24-hour dial is not turning, replace automatic defrost

time clock None Restore line voltage

3. Hook a voltmeter across the switch terminals. Verify the readings below. If you do not get these readings, replace the defrost timer.

Cycle Terminals Expected Reading 2 and 4 0 volts - closed 3 and N 0 volts - closed Cooling 3 and 1 Line volts - open 2 and 4 Line volts - open 3 and N Line volts - open Start of

Defrost 3 and 1 0 volts - closed

Defrost Heater Element FUNCTION Defrosts the evaporator coil.

COIL HEATER SPECIFICATIONS Model °F/°C

Volt Amp Watt Ohm

20/-6.7 45/7.2

115 115

3.5 7.0

400 800

14-18 14-18

70/21.1 230 3.5 800 64-67 1/-17.2 2/-16.7

115 230

9.6 8.5

1100 1950

8-12 26-30

14/-10 18/-7.8

115 115

5.2 5.2

600 600

20-24 20-24

36/2.2 230 4.8 1100 45-49

CHECK PROCEDURES 1. Turn off the electric power to the reach-in

freezer. 2. Disconnect the leads to the defrost heater and

check across with an ohmmeter. See specifications (above) for ohm values.

Results of Check Action Continuity and ohm

value within specifications

Element is OK

No continuity Replace the element Ohm value not within

specifications Replace the element

6-4

Component Check Procedures Section 6Drain Pan Heater Element FUNCTION Warms the drain pan to allow moisture to drain.

SPECIFICATIONS Model °F/°C

Volt Amp Watt Ohm

20/-6.7 45/7.2

115 115

1.73 3.5

200 400

30-34 30-34

70/21.1 230 1.73 400 130-135

CHECK PROCEDURES 1. Turn off the electric power to the reach-in

freezer. 2. Disconnect the leads to the defrost heater and

check across with an ohmmeter. See specifications (above) for ohm values.

Result of Check Action Continuity and ohm value

within specifications Element is OK

No continuity Replace the element

Ohm value not within specifications

Replace the element

3. See page 4-11 for replacement procedures.

Anti-Condensate Door Heaters FUNCTION Prevents condensation (sweating) on the cabinet and door surfaces.

SPECIFICATIONS Heater Type Ohm

Reading (total)

Refrigerator Full Door(s)

2.5 Watts per foot

30 Ohm

Refrigerator Half Doors

1.6 Watts per foot

20 Ohm

Freezer Full Door(s)

5.0 Watts per foot

14 Ohm

Freezer Half Doors

3.7 Watts per foot

50 Ohm

CHECK PROCEDURES 1. Turn off the electric power to the reach-in. 2. Disconnect the mullion heater leads. Check

with an ohmmeter. See specifications (above) for ohm values. Results of Check Action

Continuity and ohm value within

specifications Heater is OK

No continuity Replace the heater Ohm value not within

specifications Replace the heater

3. See page 4-21 for replacement procedure.

6-5

ection 6 Component Check ProceduresCompressor Overload Protector FUNCTION Shuts down the compressor if an overcurrent condition exists.

CHECK PROCEDURES


Check the continuity of the external overload protector.

1. Disconnect the wires from the overload protector from other components.

2. Check the continuity of the overload protector.

Results of Check Action Continuity Overload protector is OK

No continuity Allow the compressor to reach room temperature

and check again No continuity at

room temperature

Replace

Start Relay FUNCTION A relay used to disconnect the start winding.

CHECK PROCEDURES 1. Disconnect the wires from the start relay. If

the relay must be moved, keep it upright. 2. Check the continuity at the contact terminals.

Results of Check Action Continuity Replace the relay

No continuity Relay is OK

3. Check continuity at the relay coil terminals. Refer to the wiring diagram for terminal identification.

Results of Check Action Continuity Relay is OK

No continuity Replace the relay

6-6

Component Check Procedures Section 6Compressor Windings FUNCTION Draws current during the running cycle.

CHECK PROCEDURES NOTE: The compressor must be at room temperature. 1. Disconnect the wires from the compressor

terminals. 2. Check the resistance between terminals C

and R: Results of Check Action

Resistance See step 5 below

No resistance

Verify external overload is closed.

Run winding is open; replace compressor.

3. Check the resistance between terminals C and S:

Results of Check Action Resistance See step 5 below

No resistance Start winding is opened; replace compressor.

4. Check the resistance between terminal C and

the compressor shell: Results of Check Action

Resistance Compressor is

grounded; replace compressor

No resistance Compressor is not grounded - OK

5. Check the resistance of the windings. The resistance reading between terminals S and R should equal the readings between terminals C and R, and terminals C and S added together:

S to R = C to R + C to S

7-1

Section 7 Refrigerant ProceduresSection 7

Refrigerant Procedures

Refrigerant Recovery/Evacuation & Recharging Do not purge refrigerant to the atmosphere. Capture refrigerant using recovery equipment by specific manufacturer’s recommendations.

Important McCall Refrigeration assumes no responsibility for the use of contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.

CONNECTIONS 1. Suction side of the compressor through the

suction service valve. 2. Discharge side of the compressor through the

discharge service valve.

SELF-CONTAINED RECOVERY/EVACUATION 1. Place the main ON/OFF toggle switch in the

OFF position. 2. Install manifold gauges, charging

cylinder/scale, and recovery unit or two-stage vacuum pump.

Figure 7.1

1. Open (backseat) the high and low side Reach-In service valves.

2. Perform recovery or evacuation: A. Recovery: Operate the recovery unit as

directed by the manufacturer’s instructions.

B. Evacuation prior to recharging: Pull the system down to 250 microns. Then, allow the pump to run for an additional half-hour. Turn off the pump and perform a standing vacuum leak check.

NOTE: Check for leaks using halide or electronic leak detector after charging the Reach-In. Continued next page…

7-2

Refrigerant Procedures Section 7Charging Procedures

Important The charge is critical on all McCall Reach-In units. Use a scale or a charging cylinder to ensure the proper charge is installed.

1. Be sure the Main ON/OFF toggle switch is in

the OFF position. 2. Close the vacuum pump valve, the low side

service valve, and the low side manifold gauge valve.

3. Open the high side manifold gauge valve and the high side service valve.

4. Open the charging cylinder and add the proper refrigerant charge (shown on nameplate) through the discharge service valve.

5. Let the system “settle” for 2 to 3 minutes. 6. Place the main ON/OFF toggle switch in the

ON position. 7. Close the high side valve on the manifold

gauge set. Add any remaining vapor charge through the suction service valve (if necessary).

NOTE: Manifold gauges must be removed properly to ensure that no refrigerant contamination or loss occurs.

8. Make sure that all of the vapor in the charging hoses is drawn into the Reach-In before disconnecting the charging hoses. A. Run the Reach-In cooling mode. B. Close the high side service valve at the

Reach-In. C. Open the low side service valve at the

Reach-In. D. Open the high and low side valves on the

manifold gauge set. Any refrigerant in the lines will be pulled into the low side of the system.

E. Allow the pressures to equalize while the Reach-In is running.

F. Close the low side service valve at the Reach-In.

G. Remove the hoses from the Reach-In and install the caps.

7-3

Section 7 Refrigerant ProceduresSystem Contamination Clean-up This section describes the basic requirements for restoring contaminated systems to reliable service.

Important McCall Refrigeration assumes no responsibility for the use of contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.

DETERMINING SEVERITY OF CONTAMINATION Either moisture or residue generally causes system contamination from compressor burnout entering the refrigeration system.

Inspection of the refrigerant usually provides the first indication of system contamination. Obvious moisture or an acrid odor in the refrigerant indicates contamination.

If either condition is found, or if contamination is suspected, use a Total Test Kit from Totaline or a similar diagnostic tool. Follow the manufacturer’s directions. These devices sample refrigerant, eliminating the need to take an oil sample.

If a refrigerant test kit indicates harmful levels of contamination, or if a test kit is not available, inspect the compressor oil.

1. Remove the refrigerant charge from the Reach-In.

2. Remove the compressor from the system. 3. Check the odor and appearance of the oil. 4. Inspect the suction and discharge lines at the

compressor for burnout deposits. 5. If no signs of contamination are present,

perform an acid oil test.

Check the chart below to determine the type of cleanup required.

Contamination/Clean-up Chart Symptoms/Findings Required Cleanup Procedure

No Symptoms or suspicion of contamination Normal evacuation/recharging procedure

Moisture/Air Contamination symptoms • Refrigeration system open to atmosphere for prolonged

periods • Refrigeration test kit and/or acid oil test shows

contamination • Leak in water-cooled condenser • No burnout deposits in open compressor lines

Mild contamination clean-up procedure

Mild Compressor Burnout symptoms • Oil appears clean but smells acrid • Refrigeration test kit or acid oil test shows harmful acid

content • No burnout deposits in open compressor lines

Mild contamination clean-up procedure

Severe Compressor Burnout symptoms • Oil is discolored and smells acrid • Refrigeration test kit or acid oil test shows harmful acid

content • Burnout deposits found in the compressor and lines, and in

other components

Severe contamination clean-up procedure

7-4

Refrigerant Procedures Section 7MILD SYSTEM CONTAMINATION CLEAN-UP PROCEDURE 1. Replace any failed components. 2. If the compressor is good, change the oil. 3. Replace the liquid line drier. NOTE: If the contamination is from moisture, use heat lamps during evacuation. Position them at the compressor, condenser and evaporator prior to evacuation.

Important Dry nitrogen is recommended for this procedure. This will prevent CFC release.

4. Follow the normal evacuation procedure, except replace the evacuation step with the following: A. Pull vacuum to 1000 microns. Break the

vacuum with dry nitrogen and sweep the system. Pressurize to a minimum of 5 PSI.

B. Pull vacuum to 500 microns. Break the vacuum with dry nitrogen and sweep the system. Pressurize to a minimum of 5 PSI.

C. Change the vacuum pump oil. D. Pull vacuum to 250 microns. Run the

vacuum pump for 1/2 hour on self-contained models, 1 hour on remotes.

NOTE: You may perform a standing vacuum test to make a preliminary leak check. You should use an electronic leak detector after system charging to be sure there are no leaks.

5. Charge the system with the proper refrigerant to the nameplate charge.

6. Operate the Reach-In unit.

SEVERE SYSTEM CONTAMINATION CLEAN-UP PROCEDURE 1. Remove the refrigerant charge. 2. Remove the compressor. 3. Remove the liquid line drier. 4. Replace the TXV. 5. Wipe away any burnout deposits from

suction and discharge lines at compressor. 6. Sweep through the open system with dry

nitrogen.

Important Refrigerant sweeps are not recommended, as they release CFCs into the atmosphere.

7. Install a new compressor and new start components.

8. Install a suction line filter-drier (with acid and moisture removal capability) of adequate size. Place the filter drier as close to the compressor as possible.

9. Install inlet and outlet access valves. 10. Install a new liquid line drier.


7-5

Section 7 Refrigerant Procedures11. Follow the normal evacuation procedure,

except replace the evacuation step with the following: A. Pull vacuum to 1000 microns. Break the


B. Change the vacuum pump oil. C. Pull vacuum to 500 microns. Break the


D. Change the vacuum pump oil. E. Pull vacuum to 250 microns. Run the

vacuum pump for 1/2 hour on self-contained models, 1 hour on remotes.

NOTE: You may perform a standing vacuum test to make a preliminary leak check. You should use an electronic leak detector after system charging to be sure there are no leaks.

12. Charge the system with the proper refrigerant to the nameplate charge.

13. Operate the Reach-In unit for one hour. Then check the pressure drop across the suction line filter-drier. A. If the pressure drop is less than 1 PSI, the

filter-drier should be adequate for complete clean up.

B. If the pressure drop exceeds 1 PSI, change the suction line filter-drier and the liquid line drier. Repeat steps 8 through 13 until the pressure drop is acceptable.

14. Operate the Reach-In unit for 48-72 hours. Then remove the suction line filter-drier and change the liquid line drier.

15. Follow normal evacuation procedures.

FILTER DRIERS The size of the filter-drier is important. Using an improperly sized filter-drier will cause the Reach-In unit to be improperly charged with refrigerant.

Important Driers are covered as a warranty part. Driers must be replaced any time the system is opened for repairs.

Refrigerant Re-Use Policy McCall recommends the use of:

1. New Refrigerant • Must be of original nameplate type.

2. Reclaimed Refrigerant • Must be of original nameplate type.

3. Recovered or Recycled Refrigerant • Must be recovered or recycled in

accordance with current local, state and federal laws.

• Must be from and re-used in the same McCall product. Re-use of recovered or recycled

• refrigerant from other products is not approved.

• Recovered refrigerant must come from a “contaminant-free” system. To decide whether the system is contaminant free, consider: A. Type(s) of previous failure(s) B. Whether the system was cleaned,

evacuated and recharge properly following failure(s)

C. Compressor motor burn outs and improper past service prevent refrigerant re-use.

7-6

Refrigerant Procedures Section 7


8-1

Section 8 ChartsSection 8

Charts Charging Specifications – Refrigerators

BASE MODEL

Ambient Temperature

°F/°C

Average Interior

Temperature

Suction Pressure

Discharge Pressure

Compressor Size (H.P.)

Charge in

oz. (g)

Refrigerant Type

20 70/21.1 100/37.8

38°F 3.3°C

20 PSI 125 PSI 198 PSI

.33 12 (340)

R134A

20T 70/21.1 100/37.8

38°F 3.3°C


.33 12 (340)

R134A

20P 70/21.1 100/37.8

38°F 3.3°C


.33 14 (397)

R134A

20GD 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

20PGD 70/21.1 100/37.8

38°F 3.3°C


.50 18 (510)

R134A

45 70/21.1 100/37.8

38°F 3.3°C


.33 14 (397)

R134A

45T 70/21.1 100/37.8

38°F 3.3°C


.33 14 (397)

R134A

45P 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

45GD 70/21.1 100/37.8

38°F 3.3°C


.50 20 (567)

R134A

45PGD 70/21.1 100/37.8

38°F 3.3°C


.75 30 (850)

R134A

45XPGD 70/21.1 100/37.8

38°F 3.3°C


.75 30 (850)

R134A

70 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

70T 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

70P 70/21.1 100/37.8

38°F 3.3°C


.50 20 (567)

R134A

70GD 70/21.1 100/37.8

38°F 3.3°C


.75 30 (850)

R134A

70PGD 70/21.1 100/37.8

38°F 3.3°C


.75 34 (964)

R134A

L01 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

L01GD 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

L01RT 70/21.1 100/37.8

38°F 3.3°C


.50 16 (454)

R134A

L02 70/21.1 100/37.8

38°F 3.3°C


.50 20 (567)

R134A

L02GD 70/21.1 100/37.8

38°F 3.3°C


.75 30 (850)

R134A

8-2

Charts Section 8Charging Specifications – Refrigerators (continued)

BASE MODEL

Ambient Temperature

°F/°C

Average Interior

Temperature

Suction Pressure

Discharge Pressure


Charge in

oz. (g)

Refrigerant Type

L02RT 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.75 30 (850)

R134A

L03 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.75 30 (850)

R134A

*L03GD 70/21.1 100/37.8

38°F 3.3°C


1.0 35 (992)

R-22

H01 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 16 (454)

R134A

H01GD 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 16 (454)

R134A

H01RT 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 16 (454)

R134A

H02 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 20 (567)

R134A

*H02GD 70/21.1 100/37.8

38°F 3.3°C


.75 35 (992)

R-22

H02RT 70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.75 30 (850)

R134A

*H03 70/21.1 100/37.8

38°F 3.3°C


.75 35 (992)

R-22

* These models are obsolete.

8-3

Section 8 ChartsCharging Specifications – Freezers

BASE MODEL

Ambient Temperature

°F/°C

Average Interior

Temperature

Suction Pressure

Discharge Pressure


Charge in

oz. (g)

Refrigerant Type

20F 70/21.1 100/37.8

0°F -17.8°C


.50 18 (510)

R-404A

20FP

70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

20FGD 70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

45F 70/21.1 100/37.8

0°F -17.8°C


.75 22 (624)

R-404A

45FP 70/21.1 100/37.8

0°F -17.8°C


1.00 45 (1276)

R-404A

45FGD 70/21.1 100/37.8

0°F -17.8°C


1.00 45 (1276)

R-404A

70F 70/21.1 100/37.8

0°F -17.8°C


1.00 42 (1191)

R-404A

*70FP 70/21.1 100/37.8

0°F -17.8°C


1.75 50 (1418)

R-404A

70FGD 70/21.1 100/37.8

0°F -17.8°C


1.75 50 (1418)

R-404A

L01F 70/21.1 100/37.8

0°F -17.8°C


.75 26 (737)

R-404A

L02F 70/21.1 100/37.8

0°F -17.8°C


1.75 40 (1134)

R-404A

14F 70/21.1 100/37.8

0°F -17.8°C


.33 19 (539)

R-404A

*14FGD 70/21.1 100/37.8

0°F -17.8°C


.33 19 (539)

R-404A

18F 70/21.1 100/37.8

0°F -17.8°C


.33 19 (539)

R-404A

*18FGD 70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

*36F 70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

*36FGD 70/21.1 100/37.8

0°F -17.8°C


1.00 44 (1247)

R-404A


8-4

Charts Section 8Charging Specifications – Dual-Temps (Refrigerators/Freezers)

BASE MODEL

Ambient Temperature

°F/°C

Average Interior

Temperature

Suction Pressure

Discharge Pressure


Charge in

oz. (g)

Refrigerant Type

DT20

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.25 16 (454)

R134A

70/21.1 100/37.8

0°F -17.8°C


.25 16 (454)

R-404A

DT20GD

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.25 16 (454)

R134A

70/21.1 100/37.8

0°F -17.8°C


.33 16 (454)

R-404A

DT45

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.33 12 (340)

R134A

70/21.1 100/37.8

0°F -17.8°C


.50 18 (510)

R-404A

DT45P

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.33 14 (397)

R134A

70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

DT45GD

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 16 (454)

R134A

70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

DT70

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.33 14 (397)

R134A

70/21.1 100/37.8

0°F -17.8°C


.50 18 (510)

R-404A

*DT70P

70/21.1 100/37.8

38°F 3.3°C


.50 19 (539)

R-22

70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

DT70GD

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.50 20 (567)

R134A

70/21.1 100/37.8

0°F -17.8°C


.75 28 (794)

R-404A

DT70F

70/21.1 100/37.8

38°F 3.3°C

18-20 PSI 125 PSI 198 PSI

.33 12 (340)

R134A

70/21.1 100/37.8

0°F -17.8°C


.75 22 (624)

R-404A

*DT70FP

70/21.1 100/37.8

38°F 3.3°C


.33 16 (454)

R-22

70/21.1 100/37.8

0°F -17.8°C


1.0 45 (1276)

R-404A

*DT70FGD

70/21.1 100/37.8

38°F 3.3°C


.50 18 (510)

R-22

70/21.1 100/37.8

0°F -17.8°C


1.0 45 (1276)

R-404A


9-1

Section 9 DiagramsSection 9 Diagrams

20 2001 20P 20P01 45 4501 45P 45P01 70 7001 115/60/1

9-2

Diagrams Section 9

20GD 20GD01 20PGD 20PGD01 115/60/

9-3

Section 9 Diagrams

45GD 45GD01 115/60/1

9-4

Diagrams Section 9

45XPGD 45PGD 45PGD01 45X 208-230/60/1

9-5

Section 9 Diagrams

70GD 70GD01 70PGD 70PGD01 208-230/60/1

9-6

Diagrams Section 9

20F 20F01 45F 45F01 20FP 20FP01 115/60/1

9-7

Section 9 Diagrams

20FGD 20FGD01 115/60/1

9-8

Diagrams Section 9

45FGD 45FGD01 208-230/60/1

9-9

Section 9 Diagrams

70F 70F01 70FP 45FP 45FP01 208-230/60/1

9-10

Diagrams Section 9

70FGD 70FGD01 208-230/60/1

9-11

Section 9 Diagrams

2001E 2001GD 115/60/1

9-12

Diagrams Section 9

45 4501 45P 45P01 115/60/1

9-13

Section 9 Diagrams

DM1-115 115/60/1

9-14

Diagrams Section 9

MGM25-2 MGM25-3

9-15

Section 9 Diagrams

14 18 36 1401 1801 3601 115/60/1

9-16

Diagrams Section 9

14F 18F 1401F 1801F 115/60/1

9-17

Section 9 Diagrams

36F 3601F 115/60/1

9-18

Diagrams Section 9

45P 45P01 L-01 L-01RT H-01 H-01RT L-02 L-02RT H-02 H-02RT UL-01 UL-01RT UH-01 UH-01RT

208-230/60/1

9-19

Section 9 Diagrams

L-02 H-02 115/60/1

9-20

Diagrams Section 9

UH-02 UL-02 H-02RT L-02RT 115/60/1

9-21

Section 9 Diagrams

H-03 L-03 UH-03 UL-03 208-230/60/1

9-22

Diagrams Section 9

H-03 L-03 UH-03 UL-03 115/60/1

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Section 9 Diagrams

1 or 2 Section Roll-In Freezer 115/60/1

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Diagrams Section 9

1 or 2 Section Roll-In Freezer 208-230/60/1

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Section 9 Diagrams

Hot Food Storage Cabinet 115/60/1

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Diagrams Section 9

1 Section Heated Food Storage Cabinet

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Section 9 Diagrams

2 Section Heated Food Storage Cabinet

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Diagrams Section 9

01-H 02-H 45-H 208-230/60/1

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Section 9 Diagrams


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Diagrams Section 9


© 2008 Manitowoc Continuing product improvements may necessitate change of specifications without notice. Part Number 123456 01/08

McCALL 81 West Holly Street

Parsons, TN 38363 USA Phone: 1-888-REACH-IN

(1-888-732-2446) Parts Fax: 1-731-847-5552

Inside Sales Fax: 1-731-847-9012 Visit us online at: www.manitowocfsg.com

SERVICE MANUAL - Restaurant Equipment, Restaurant Supply | Burkett

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Transcript of SERVICE MANUAL - Restaurant Equipment, Restaurant Supply | Burkett